312 



Minnesota Algae 



halophila Lemm. (Coelosphaeriopsis) 



41 

 halos Wood (Mastigonema) 256, 272 

 Hapalosiphon Naeg. 236, 237 

 harveyana (Tliwaites) Thur. (Nodu- 



laria) 99, 182, 184 

 hawaiensis Lemm. (Schizothrix) 150 

 hawaiensis (Lemm.) De Toni (Inac- 



tis) 147, ISO 

 hawaiiensis Tilden (Nodularia) 182, 



184 

 hederulae Menegh. (Nostoc) 164 

 helveticus Naeg. (Chroococcus) 4, 8 

 hemisphaerica (L.) Aresch. (Rivulfl- 



ria) 289 

 heppii Naeg. (Diplocolon) 236 

 heppii (Naeg.) Wolle (Scytonema) 236 

 herbacea Kuetz. (Hypheothrix) 139, 



140 

 herbacea Kuetz. (Leptothrix) 141 

 heterotrichus Kuetz. (Hydrocoleus) 



134. 138 

 hindsii Mont. (Trichodesmium) 84 

 hinnulea Wolle (Beggiatoa) 140 

 hinnulea (Wolle) De Toni (Hypheo- 

 thrix ?) 138, 140 

 hinnulea (Wolle) Tilden (Lyngbya) 



140 

 hirtulus Kuetz. (Symphyosiphon) 228 

 hirtulum (Kuetz.) Rab. (Scytonema) 



212, 228 

 hofmanni Ag. (Scytonema) 212, 216 

 forma brunnea Wolle 217 

 var. calcicolum (Hansg.) 217 

 var. symplocoides (Reinsch) Born. 



and Flah. 217 

 hofmanni Kuetz. (Symphyosiphon) 



216 

 holdenii Tilden (Hydi-ocoleus) 134, 137 

 holdenii De Toni (Lyngbya) 109, 115 

 homoeotrichus Kuetz. (Hydrocoleus) 



134, 137 

 Hormogoneae i, 56 

 hormoides (Kuetz.) Hornet and Flah. 

 (Stigonema) 244 



var. rhizodes (Kuetz.) Hansg. 24s 



var. tenue West and West 245 

 Hormothamnion Grun. 161, 204 

 hosfordii Wolle (Calothrix) 278 

 hosfordii (Wolle) Born. (Dichothrix) 



274, 278 

 hospita Thur. (Rivularia) 287 

 humifusum Carm. (Nostoc) 162, 170 

 humphreyi Collins (Goniotrichum) 29s 

 hyalina Harv. (Lyngbya) iii, 128 

 hyalina Kuetz. (Schizothrix) 150, 151 

 hyalinus (Kuetz.) Kirchn. (Micro- 



coleus) 128, 151 

 hydnoides Kuetz. (Symploca) 129 



var. fasciculata (Kuetz.) Gom. 130 



var. genuina Gom. 130 



Hydrocoleus Kuetz. 57, 134 

 hydrurimorpha Crouan (Oscillaria) 



129 

 Hyella Bornet and Flahault 46, Si 

 Hypheothrix Kuetzing S7. 138 



ichthyoblabe Kuetz. (Microcystis) 33, 



34 

 icthyoblabe Kuetz. (Polycystis) 34 

 immersutn Wood (Scytonema; 212, 



228 

 imperator Wood (Oscillaria) 62 

 Inactis Kuetzing S7. 146 

 inaequalis (Kuetz.) Born, and Flah. 



(Anabaena) 186, 191 

 incrustans Grun. (Chamaesiphon) S5 

 incrustans Kuetz. (Symphyosiphon) 



226 

 incrustata Wood (Gloeotrichia) 285 

 incrustata (Wood) De Toni (Rivula- 

 ria) ^83, 28s 

 incrustatum (Naeg.) Gom. (Phormid- 

 ium) 92, 99 

 var. cataractarum (Naeg.) Gom. 100 

 incurvus Allm. (Trichormus) 189 

 indica Crouan (Calothrix) 220 

 informe. Kuetz. (Stigonema) 244, 249 

 interrupta Kuetz. (Lyngbya) 121 

 interruptum Kuetz. (Phormidium) 92, 



102 

 intertextum (Kuetz.) Rab. (Scytone- 

 ma) 212, 219 

 intracellularis J. Schm. (Richelia) 201 

 intricatum Menegh. (Nostoc) 166 

 intricatus West and West (Hapalo- 

 siphon) 238, 241 

 inundata Kuetz. (Lyngbya) 100 

 inundatum Kuetz. (Phormidium) 92, 



100 

 Isactis Thuret 253, 281 

 itzigsohnii Born. (Gloeocapsa) 22 



janthina (Mont.) Born, and Flah. 



(Amphithrix) 253 

 var. torulosa (Grun.) Born. an4 



Flah. 2S3 

 janthina Naeg. (Gloeocapsa) 14, 22 

 javanicum (Kuetz.) Born, and Flah. 



(Scytonema) 212, 218 

 var. hawaiiense Lemm. 218 

 jenneri (Kuetz.) Stiz. (Arthrospira) 



8S 

 jenneri Kuetz. (Spirulina) 85 

 joannianum Kuetz. (Phormidium) 106 

 Juliana (Menegh.) Born, and Flah. 



(Calothrix) 254, 2s6 

 iulianum Rab. (Phormidium) 114 

 julianum Menegh. (Scytonema) 216 

 junipericolum Farl. (Scytonema) 212, 



226 



